The line of force in a magnetic field represents the direction at each point that a magnetic needle placed at the point takes up. Do they also represent the direction of the force on a moving charge at each point?(a) Not possible(b) Represent circular motion(c) Represent tangential motion(d) Represents translatory motionI got this question by my college director while I was bunking the class.This intriguing question originated from Magnetism and Gauss’s Law topic in division Magnetism and Matter of Physics – Class 12

The line of force in a magnetic field represents the direction at each

1.	The line of force in a magnetic field represents the direction at each point that a magnetic needle placed at the point takes up. Do they also represent the direction of the force on a moving charge at each point?(a) Not possible(b) Represent circular motion(c) Represent tangential motion(d) Represents translatory motionI got this question by my college director while I was bunking the class.This intriguing question originated from Magnetism and Gauss’s Law topic in division Magnetism and Matter of Physics – Class 12
Answer» The correct choice is (a) Not possible The BEST EXPLANATION: No. The force on a charge is perpendicular to the DIRECTION of the magnetic FIELD at each point. F = q (v × B). It is INAPPROPRIATE to call magnetic field lines as lines of force.

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